Block a number and unknown callers before being called
Open "Contacts" app 
:
- tap on
,
- tap on
"Settings",
- tap on "Blocked numbers" (down the screen),
- tap on "ADD A NUMBER",
- enter a phone number,*
- tap on "BLOCK".
You can also block unknowned callers who don't belong to your contacts list.
* Calls are automatically redirected to the voicemail without notification. SMS/MMS are not received either.
To unblock a contact, do the reverse setting.
:- tap on
,- tap on
"Settings",- tap on "Blocked numbers" (down the screen),
- tap on "ADD A NUMBER",
- enter a phone number,*
- tap on "BLOCK".
You can also block unknowned callers who don't belong to your contacts list.
* Calls are automatically redirected to the voicemail without notification. SMS/MMS are not received either.
To unblock a contact, do the reverse setting.
Block a number from the call log
Open "Phone"app 
or 
:
- tap on
"Recent",
- keep your finger for a while on the caller's ID or number,
- tap on "Block/report spam".*
* Calls are automatically redirected to the voicemail. SMS/MMS are not received either.
To unblock a contact, do the reverse setting.
or :- tap on
"Recent",- keep your finger for a while on the caller's ID or number,
- tap on "Block/report spam".*
* Calls are automatically redirected to the voicemail. SMS/MMS are not received either.
To unblock a contact, do the reverse setting.